| MT | Reaction | 0.0253-eV | Maxwellian Average |
g-factor | Resonance Integral |
14-MeV | Fiss. Spec. Average |
|---|---|---|---|---|---|---|---|
| 1 | (n,total) | 8.413 (b) | 9.053 (b) | 1.076 | − | 4.480 (b) | 5.579 (b) |
| 2 | (n,elastic) | 5.050 (b) | 5.698 (b) | 1.128 | − | 2.582 (b) | 4.486 (b) |
| 4 | (n,inelastic) | ( E-thr = 562.0 keV ) | 898.0 (mb) | 980.2 (mb) | |||
| 16 | (n,2n) | ( E-thr = 10.68 MeV ) | 871.9 (mb) | 192.2 (μb) | |||
| 17 | (n,3n) | ( E-thr = 19.03 MeV ) | − | 8.030 (nb) | |||
| 22 | (n,na) | ( E-thr = 2.142 MeV ) | 4.778 (mb) | 1.254 (μb) | |||
| 28 | (n,np) | ( E-thr = 7.886 MeV ) | 11.17 (mb) | 1.900 (μb) | |||
| 32 | (n,nd) | ( E-thr = 15.54 MeV ) | − | 1.794e-12 (b) | |||
| 102 | (n,γ) | 3.363 (b) | 3.356 (b) | 0.998 | 19.50 (b) | 1.019 (mb) | 108.9 (mb) |
| 103 | (n,p) | ( E-thr = 369.2 keV ) | 92.05 (mb) | 2.098 (mb) | |||
| 104 | (n,d) | ( E-thr = 5.553 MeV ) | 679.5 (μb) | 154.4 (nb) | |||
| 105 | (n,t) | ( E-thr = 9.299 MeV ) | 1.984 (μb) | 4.878 (nb) | |||
| 106 | (n,He-3) | ( E-thr = 5.614 MeV ) | 517.6e-12 (b) | 51.59e-12 (b) | |||
| 107 | (n,a) | 0.000 (b) | 0.000 (b) | − | 5.977 (mb) | 18.74 (mb) | 672.0 (μb) |
| 111 | (n,2p) | ( E-thr = 6.549 MeV ) | 613.3 (nb) | 393.0e-12 (b) | |||
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These cross sections are calculated from JENDL-3.2 at 300K.
The background color of each cell noted a cross section means the order of the cross-section value.
The unit of cross section, (b), means barns, and SI prefixes are used as following.
(kb) → 103(b), (mb) → 10−3(b),
(μb) → 10−6(b), (nb) → 10−9(b).
MT is a number that defines a reaction type. For the relation between MT and reaction type, please see here or refer to the manual of ENDF formats.
Maxwellian Average :
where T denotes the temperature, and kB the Boltzmann constant.
The upper and lower limits of integration, EL and EU
are set to 10−5 eV and 10 eV, respectively.
Resonance Integral :
with EL = 0.5 eV and EU = 10 MeV.
U-235 Thermal Fission-Neutron Spectrum Average (Fiss. Spec. Average) :
with EL = 10−5 eV and EU = 20 MeV.
The parameters a and b are 0.988 MeV and 2.249 MeV−1, respectively.
Westcott g-factor :
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